Draft-gear yoke.



G. J. NASH. DRAFT GEAR YOKE.

APPLIOATION FILED JULY 25, 1912.

mmyss.

INVENTOR' (WW/6&9 fMSf,

BY -U x. Mam

' ATTORN s.

Patented Oct. 7, 1913.

WITNESSES:

' Taal'l whom i may concern:

.- Improvements in STA-Ties PATENT onnio.

cHABLLES' J. NASH, oi" cnxonso, nfmors, ASSIGNOB 'ro umvmassr DRAFT seen,

ATTACHMENT (ML, A CORPQRATION OF ILLINOIS.

' DWI-GEAR YokE.

-Beit known that I, CHARLES J L NASH, a

nois, have invented certain new and usef which the following is .a specification,

drawings, .for-minga part thereof.

The invention relates to cast metal for draft gears for railway cars; its object being to secure great strehgth with a small weight of metal.

' r The embodiment of the invention is illus tratedin the accompanying drawings, in

Figure 1 is a side elevation of the yoke, Fig. 2 is a longitudinal plan section thereof on the line 2-2 of Fig. 1; Fig. 3 is a detail in perspective, partly in section; and Fig. 14 is a cross-section on the line 4-4 of F g. 1. The-yoke isa casting preferably of steel,

'its'bod-y being in the conventional U-shaped ward follower.

The plates 16, 17,

bridge plate 15,. and is preferably thickness as said plates.

form approved'by the Master Car Builders Assoc1at on and, when desired, having, as

shown, bridges intermediate of its ends for engagement with forward and intermediate fol-lowerss. The top and bottom longitudinal members of the yoke are represented, respectively, at 10, 11, and its rearward bowed end at' 12, these'members being preferably of uniform thickness and ofsuch width as may be required to afiz'ord adequate strength.

I The bowed end' of the yoke is provided with cheek-plates .13, 14, whlch extend forwardl 12 and are integral therewit thickness. The forward mar ins of the plates 13, 1.4:, are united interme 'ate of .tllGlIBIldS- by a of substantially the same -The .forward face .late 15 is perpendiculartothe of the bridge axis of the yo When the yoke is adapted for use with a socalled tandem gear, it is provided with a pair of bridge plates 16, 17 unitin the side members 10 and 11 and being pre erably of equal thiclmess therewith, and being lo cated, respectively, at the margins thereof.

are united at their marins, and intermediate the ends thereof, with cross webs 18, '19, which are cast as integral Draft-Gear Yokes, of and. which are illustrated in the accsmpanyingv yoked which is cast. integral with p e and forms a seat for a rear}- Patented Oct. 7,1913.

191-2. BerialNo. 711,482.

"parts of the yoke, and the thickness of which is preferably substantially the same as that of the parts already described. The width of the. bridge plates 16, 17, issuch that the webs 18, 19, are spaced apart, and the remoter faces of these two webs are perpendicular to the axis of the yoke and 'form seats for intermediate followers.

sis-able to extend the yoke forwardly beyond the shockabsorbing elementsjof .the gear a greater distanaathan is necessary to accommodate the inner end .orbuttgofa coupler bar, and-theyoke as illustrated in the drawit is nec ssary to provide a filler for transmitting piling stresses from the butt of the coupler to urpose an additional pair of bridging plates 20, 21, similar to the plates 16, 17, is

of and being cast integral with the side members 10, 11, of the yoke, their width being determined by the extent to which it is desirable to space the butt of the coupler bar from the forward follower.

The margins of the plates 20 21, intermediate of their ends are united by integral form bearings, respectively, for the butt of the coupler bar and the forward follower.

preferably all of substantially the same thickness as the side members 10, 11, of the yoke. v

Preferably the union of the plates 20, 21, with the side members '10, 11,'does not "extend for tbeentire width of the plates, their forward portions beingof less length than the distance between the yoke members, leaving intersp'aces, as shown at 24:, 2.5. The forward e'nds' of t 0 members 10,11, are flanged inwardly, as shown at 26, 27 to engage shoulders on the coupler bar,. ,an'd rivet or bolt-holes, as 28, 29, are provided for the accommodation of securing- 3 means taching 'a coupler bar tothe'yoke. In practioe it is'fr'equently found that the butts of coupler bars do not fit exactly between the sidemembers of a yoke, it being customary to put into-service such parts as they come from thefoundry and without machining.

the bridge plates 20, 21, from'the yoke mern Under some circumstances it is found acl-.-

ings is solma-de. In such an elongated yokeprovided; these plates uniting the margins.

The plates 20, 21, and the webs 22, 23, are

for at- The separation of the forward portions of the forward follower, and for this webs 22, 23, the remoter faces of which either outwardly-or inwardly to adapt them toreceive coupler butts which .exceed the intended dimension, or to be drawn down upon butts which fall below the intended measurement.

The yoke constructed-was described provides the essential strength in its various parts Without the massing-of metal, and

thereby not only avoidsunnecessary Weight abut also eliminates the risk of fracturesdue 'to shrinkage in cooling the casting.

I claim as my invention 1. In a draft gear yoke, in combination, a pair of longitudinal members, a cross member uniting the .rear ends thereof, cheek plates extending forwardly from the side edges of the cross member, and a bridge plate uniting the cheek plates at their forward edges and being spacedapart from the longitudinal members.

2. In a draft gear yoke, 1n 'combinatlon, a

pair of longitudinal members, a cross member uniting the rear ends thereof, bridge plates uniting the margins'of the longitudinal members intermediate of their ends, and Webs uniting the bridge plates at both of their margins and being spaced apart from the longitudinal members.

3. In a draft gear yoke, in combination, a pair of longitudinal members, a cross member uniting the same at their rear ends,

bridge plates uniting the margins of the longitudinal members and located adjacent the forward ends thereof, a Web unlting the bridge plates at their forward margins and forming a seat for a coupler butt and being spaced apart from the longitudinal members.

4. In a draft gear yoke, in combination, a

pairof longitudinal members, a crossamemher uniting the same at their rear ends,

bridge plates uniting the margins of the longitudinal members and located adjacent the forward ends thereof, the bridge plates exfrom the cross member, abridge plate uniting the cheek-plates at their forward mar-' a seat for a cougins, a pair of bridge plates uniting the longitudinal members at their margins inter-'- mediate of their ends, Webs uniting botlr margins of the bridge plates, a pair of bridge plates uniting the longitudinal mem-.

bers at their margins and adjacent their forwardends, and Webs uniting both'margins of the last-named bridge plates; all of the named elements being cast integrally and be- -ing of substantially the same thickness the several named webs being spaced apart from the longitudinal members.

CHARLES J, NASH.

Witnesses LoUIs K. GILLSON, E. M. KLA'roHER. 

